Definition of "Westminster"

The abbey of Westminster  examples

The City of Westminster: a London borough of Greater London including the principal offices of the British government.  examples

A neighbourhood in central London; the administrative centre of borough of Westminster.  examples

The Palace of Westminster  examples

(colloquial, metonymically) The British parliament, based at the Palace of Westminster  examples

A city, the county seat of Carroll County, Maryland, United States.  examples

A city in Orange County, California, United States.  examples

An English dukedom.  examples